243348815 has 8 divisors (see below), whose sum is σ = 299911200. Its totient is φ = 189417312.

The previous prime is 243348803. The next prime is 243348821. The reversal of 243348815 is 518843342.

It is a happy number.

243348815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243348815 - 2¹² = 243344719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657515 + ... + 657884.

It is an arithmetic number, because the mean of its divisors is an integer number (37488900).

Almost surely, 2^243348815 is an apocalyptic number.

243348815 is a deficient number, since it is larger than the sum of its proper divisors (56562385).

243348815 is a wasteful number, since it uses less digits than its factorization.

243348815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315441.

The product of its digits is 92160, while the sum is 38.

The square root of 243348815 is about 15599.6415022910. The cubic root of 243348815 is about 624.3235903494.

The spelling of 243348815 in words is "two hundred forty-three million, three hundred forty-eight thousand, eight hundred fifteen".